The morris peters co



(No Model.) 3 Sheets-Sheet 1.

J. PELOUBET.

PNEUMATIC ACTION FOR ORGANS.

No. 487,767. Patented Dec. 13, 1892.

3 Sheets-Sheet 2.

(No Model.)

J. PELOUBET. PNEUMATIC ACTION FOR ORGANS.

No. 487,767. Patented Dec. 13, 1892.

jaw 5% (No Model.) 3 Sheets-Sheet 3.

J. PELOUBET. PNEUMATIC AGTION FOR ORGANS.

No. 487,767. Patented Dec. 13, 1892.

Waaaa PATENT Fries.

JARVIS PELOUBET, OF CHICAGO, ILLINOIS, ASSIGNOR TO LYON & HEALY, OF SAME PLACE.

PNEUMATIC ACTION FOR ORGANS.

SPECIFICATION forming part of Letters Patent No. 487,767, dated December 13, 1892.

Application filed May 23, 1892.

To. all whom it may concern:

Be it known that I, JARVIS PELOUBET, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illi- 5 nois, have invented a certain new and useful Improvement in Pneumatic Actions for Organs, of which the following is a specification.

The principal object of my invention is to provide a highly-sensitive and quick action in a large working pneumatic; and to such end I provide a couple of simultaneously-operating primary pneumatic valves which are independent of one another and actuated by separate pneumatic valve-actions, in which I way, in place of providing one large and comparatively-slow-working primary valve to do the work, I am enabled to divide such work between two small, sensitive, and quick-acting primary valves, which are readily respon- 2o sive to atmospheric pressure momentarily communicated through comparatively-small ducts or passages. One of these two primary valves is applied for opening and closing communication between an exhaust-chamber and 2 5 pneumatic bellows, so that when open the pneumatic bellows shall be subject to the exhaust, while on the other hand the other primary valve is applied for placing the pneumatic bellows in communication with the open 0 air. With reference to the two primary valves allotted to anyone key the pneumatic valve-actions which actuate such valves are subject to weight or spring power tending to maintain the valves in what may be termed 5 their respective normal positionsthat is to say, to maintain one valve in position to close communication between the exhaustchamber and pneumatic bellows and maintain the other valve in position to establish communication between the pneumatic bellows and the open air. When the two valves are in such positions and the exhaust-bellows is operated to exhaust from the exhaust-chamber, each valve-action is so subject to an equilibrium of pressure that it will remain closed until such equilibrium is destroyed at one side of the action; and to such end the valveactions are made expansible and internally connected with an air-duct which can be opened and closed by a valve. This valve is in turn operated by depressing the key,-so

Serial No. 434,091. (No model.)

that when the key is depressed the air-duct will be open to the external air, and thereby permit the valve-actions to be actuated by atmospheric pressure. I may use any suitable form or construction of valve-action which will operate when subject at one side to a partial vacuum and subject at the other side to atmospheric pressure, and I may provide any suitable connection between the valve proper and its action or incorporate one with the other in any suitable way, it being understood that the effect herein attained is that of two primary pneumatic valves operated by the change of. pressure as herein set forth.

In the accompanying drawings, Figure 1 represents avertical section through an organ embodying my invention, the feeder being shown in elevation. Fig. 2 represents in elevation the pneumatic action and key. Fig. 3 is a section through Fig. 2 on line ac m. Fig.

4 is another view of Fig. 2 in elevation. Fig.

5 shows a portion of the upright action of the organ. Fig. 6 is a longitudinal vertical section through the pneumatic action on a plane indicated by line 2 e at one side of the valves and pneumatic valve-actions. Fig. 7 is a like view on a plane through the valves and pneumatic valve-actions. Fig. 8 is a top plan of I the bottom of the secondary exhaust-ch amber and further illustrates the two pneumatic valves.

In Fig. 1 I have illustrated a portion of an upright action A,wherein thereeds 1 are understood to be arranged in rows or series, one 8 above the other. The lifting-rod 2 (shown arranged for operating a set of pallets 3) is provided with buttons 4, which engage with pins 5 upon the pallets during the rise of the rod, and thereby permit the same to operate the pallets. The lifting-rod is operated from the pneumatic bellows B through the medium of a crank-rod or crank rock-shaft C. (Shown journaled between its ends in a bearing 6.) The rise on the part of the lifting-rod is ef- 5 fected by the contraction of the exhaust-bellows, the latter being opened or expanded by the weight of such operative portion of the upright action as it is called upon to lift during its contraction. Below or in other suit- I00 able relation to the pneumatic bellows B are a couple of connecting exhaust-chambers D and E. These exhaust-chambers are shown arranged over the exhaust-bellows F, which latter is connected with a feeder G, made and arranged separate from the organ. Referring, also, to the remaining figures of the drawings, the exhaust-chamber D, hereinafter termed the primary exhaust-chamber, is understood to be connected with the exhaust-bet lows F through the medium of any suitablyarranged passage, while the exhaust-chamber E, hereinafter termed the secondary eX- haust-chamber, is connected with the pneumatic bellows through a port or passage 7, as illustrated in Fig. 7. These two exhaust-chambers are connected with one another through the medium of a port 8, which can be opened and closed by one of a couple of separately arranged primary pneumatic valves II and I. The primary valve II is shown allotted to port 8,whicl1 serves as a connection between the two exhaust-chambers,while,on the otherhand,the remaining independently-arranged primary valve I is allotted to a port 9, which serves to establish communication between the secondary exhaust-chamber E and the open air. The two primaries or primary valves are subject to and operated by small pneumatic or bellows valve-actions K and L, arranged within the primary exhaust-chamber and connected with said valves, respectively, through the medium of stems 10and 11. These stems are extended upwardly from said bellows valve-actions, so as to engage the valves, which are shown arranged within the secondary exhaust-chamher, so as to conveniently operate for the purpose of opening and closing the ports to which they are respectively allotted. The primary valve His also subject to and normally closed by any suitably-applied weight or spring 12, while, to the contrary, the primary valve I is normally held open in like mannerfor example, by a spring 13. The interior of the bellows Valve-action K is in communication with an air duct or passage M, arranged so that its inlet end can be opened and closed by a valve N, which latter is normally closed by a weight or spring let and opened by the action of one of the keys 0 of the customary keyboard. The port or duct M when opened by the valve N communicates with the open air, but is normally closed by said valve. The duct M also connects with the interior of the bellows valve-action L through the medium of a branch duct 15. (Best illustrated in Fig. 7.) The key is fulcrumed as a lever at 16, Fig. 2, and connects with the valve N by a rod or tracker 16, so that when the key is depressed in playing the organ such act will serve to open the valve N, and thereby place the interior of each of the two valveactions K and L in open communication with the external air. The ducts or passages M and 15 also connect with the primary exhaustchamber D through the medium of small ports 17. When, therefore, the air is exhausted from the primary exhaust-chamber by the exhaust-bellows and the valve I is closed, there contracted by their allotted springs, and thus I respectively hold the valve I1 closed and the valve I open. lVhen the valve N is opened, atmospheric pressure will at once be transmitted to the interior of the valve-actions and overcome the spring resistances, so as to open the primary valve H and close the primary valve I. This action on the part of the pr mary valves instantly establishes communication between the secondary exhaust-chamber E and the primary exhaust-chamber D through the medium of port 8 and closes port 9, so as to cut cit communication between the secondary exhaust-chamber and the open air. Thereupon an exhaust from the secondary exhaust-chamber will necessarily take place through port 8, which action serves to induce an exhaust from the pneumatic bellows B, which will contract and thereby operate the lifting-rod. The instant, however, the keyis released the valve N will automatically close, so as to cut ott the interior of the valve-actions from atmospheric pressure, and as an immediate result equilibrium of pressure will be again established within and around the valve-actions and the valve II will close, so as to cut off communication between the two exhaust-chambers, while, on the other hand, the valve I will open, so as to establish open communication between the secondary exhaust-chamber E and the open air, and thereby permit the pneumatic bellows B to open and the lifting-rod to drop and close the pallets.

By thus employing two separately-arranged primary valves, which are entirely independent of one another, I can employ small ducts and small and sensitive valves, which operate quickly and simultaneously, and in ready response to the action of the key.

I do not limit myself to the precise construction and arrangement of parts shown, since the same can be varied without departing from the spirit of myinvention, as will be obvious to those skilled in the art to which my invention appertains.

The reed-boards and feeder herein illustrated involve matters of improvement embodied in my applications of even date herewith, and hence need not be herein particularly described.

\Vhat I claim as my invention is-- 1. A pneumatic action comprising a couple of simultaneously-operatingindependent primary pneumatic valves, substantially as and for the purpose described.

2. A pneumatic action comprising primary and secondary exhaust-chambers, a primary pneumatic valve for opening communication between the two chambers, and an independently-arranged primary valve for opening and closing communication between the secondary exhaust-chamber and the open air, substantially as described.

3. Thecombination of apnenmatic bellows, an exhaust-chamber, a primary pneumatic valve for opening and closing communication between the pneumatic bellows and the exhaust-chamber, and a separately-arranged primary valve for opening and closing communication between the pneumatic bellows and the open air, substantially as described.

t.- The combination of the primary and secondary exhaust-chambers, a primary pneumatic valve arranged for opening and closing communication between said chambers and including an expansible action subject to the exhaust, a primary valve arranged for opening and closing communication between the secondary exhaust-chamber and the open air and including an expansible action subject to the exhaust, and a valve applied for opening and closing communication between one side of each of said expansible actions and the open air and connected with and operated by one of the keys, substantially as described.

5. The combination of an upright action and a pneumatic action involving a couple of independent primary valves, substantially as and for the purpose set forth.

6. The combination of the exhaust-bellows JARVIS PELOUBET.

Witnesses: v

CHAS. G. PAGE, W. D. MIDDLETON. 

